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An aneurysm is an abnormal enlargement of a blood vessel such as the aorta. Because of an aneurysm, the normal cross-sectional area A1 of the aorta increases to a value of A2 = 1.7A1. The speed of the blood through a normal portion of the aorta is v1 =0.26 m/s. Assuming that the aorta is horizontal (the person is lying down), determine the amount by which the pressure P2 in the enlarged region exceeds the pressure P1 in the normal region.
A tennis ball is struck and departs from the racket horizontally with a speed of 29.4 m/s. The ball hits the court at a horizontal distance of 20.7 m from the racket. How far above the court is the tennis ball when it leaves the racket?
Ultraviolet light is incident normally on the surface of a certain substance. The binding energy of the electrons in this substance is 3.44 eV. The incident light has an intensity of 0.063 W/m2
A vase falls off a table and shatters into three fragments which move away horizontally across the floor. Fragment 1 has half the mass of the original vase and travels with speed 34.5 cm/s. Fragment 2 has one-quarter the mass of the original vase ..
The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, find the cheetah's average acceleration during the short sprint
question1drawing velocitytime graphs of the following motions-a a city bus that is moving with a constant velocityb a
A spark plug in a car has electrodes separated by a gap of 6.5×10?2in. What potential difference must be applied to the spark plug to initiate a spark
at the brookhaven accelerator protons of kinetic energy 33 gev are made to orbit around a circle of radius 128 m. what
A sealed glass jar contains air initially at a pressure of 1.00 atm and temperature of 0° C. Discover the air pressure when the jar is heated to 271° C. The linear expansion coefficient of the glass is 9.70*10-6 (C°)-1.
A point charge Q = 4.20×10-6 C is at the center of a conducting spherical shell of radius R = 18.40 cm. The total charge of the shell is -4.20×10-6 C. What is the field just outside the shell
a 35.0 cm diameter coil consists of 30 turns of circular copper wire 2.0 mm in diameter. a uniform magnetic field
You clamp a straight ramp of length 51 cm making an angle of 18.0° with the horizontal table top, What time elapses from when the car leaves the ramp until it reaches the floor
Old naval ships fired 14 cannon balls from a 240 cannon. It was very important to stop the recoil of the cannon, since otherwise heavy cannon would go careening across the deck of the ship.
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